Or it may be in some instances that the image is created by the sitter himself in such palpable shape as to be caught by the camera. Indeed, in many recorded instances, where the sitter has been a powerful medium, it seems probable that he created the image himself. In point of fact there is little doubt that the power resides, to a greater or less extent, in all human beings to create such images, their strength and clearness depending, of course, upon the power of the individual to recall vividly the remembrance of the person to be photographed, together with the power to concentrate his mind for a certain length of time upon the mental picture. Indeed, experiments have been made which demonstrate the power to produce the picture of any one, living or dead, in this manner. This being true, two conclusions are obvious; namely, (1) That the phenomena of spirit photography are easily accounted for, without the necessity of attributing them to extramundane origin; and (2) That the power resides in the subjective mind of man to create phantasms perceptible to the objective senses of others. Again, it seems to be well established by experiment that some persons have the power, not only to create such phantasms, but to endow them with a certain degree of intelligence and power. Thus, the experiments recorded in "Phantasms of the Living," and quoted in a preceding chapter of this book, show that the image of the agent was not only created by him in his sleep, but was projected into the presence of others at a long distance from where he slept. The image was not only perceptible to the sight, as much so as the real presence would have been, but in some instances it was even tangible. The Orientalists call this the "projection of the astral body," and it is claimed that many persons in the East have acquired the power to produce the phenomenon at will. The fact that phantasms can thus be produced being well authenticated, many old stories of such phenomena acquire a new interest and importance, and assume an air of probability. Thus, the old stories of witches, in so far as the alleged phenomena seem to have been produced under the same conditions as those which are well authenticated, are elevated into the region of possibility, if not of probability. They are at least worthy of re-examination, in the light of modern experiments. It is foreign to my purpose to enter at large into the discussion of the alleged phenomena of so-called witchcraft, and this allusion is made here for the purpose of suggesting to those who desire to pursue the subject that if they will take for granted that which has been demonstrated to be true in regard to the power of the sub-conscious mind, or personality, to project tangible phantasms or images, and will apply the doctrine of duality and suggestion to the alleged facts, the old stories of the phenomena of witchcraft will be found to possess a scientific value and importance which cannot be ignored in the study of